michael@0: /*
michael@0:  * Copyright (c) 2008-2009 Mozilla Foundation
michael@0:  *
michael@0:  * Permission is hereby granted, free of charge, to any person obtaining a 
michael@0:  * copy of this software and associated documentation files (the "Software"), 
michael@0:  * to deal in the Software without restriction, including without limitation 
michael@0:  * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
michael@0:  * and/or sell copies of the Software, and to permit persons to whom the 
michael@0:  * Software is furnished to do so, subject to the following conditions:
michael@0:  *
michael@0:  * The above copyright notice and this permission notice shall be included in 
michael@0:  * all copies or substantial portions of the Software.
michael@0:  *
michael@0:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
michael@0:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
michael@0:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
michael@0:  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
michael@0:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
michael@0:  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
michael@0:  * DEALINGS IN THE SOFTWARE.
michael@0:  */
michael@0: 
michael@0: package nu.validator.htmlparser.impl;
michael@0: 
michael@0: import nu.validator.htmlparser.annotation.Literal;
michael@0: import nu.validator.htmlparser.annotation.Local;
michael@0: import nu.validator.htmlparser.annotation.NoLength;
michael@0: import nu.validator.htmlparser.common.Interner;
michael@0: 
michael@0: public final class Portability {
michael@0: 
michael@0:     // Allocating methods
michael@0: 
michael@0:     /**
michael@0:      * Allocates a new local name object. In C++, the refcount must be set up in such a way that 
michael@0:      * calling <code>releaseLocal</code> on the return value balances the refcount set by this method.
michael@0:      */
michael@0:     public static @Local String newLocalNameFromBuffer(@NoLength char[] buf, int offset, int length, Interner interner) {
michael@0:         return new String(buf, offset, length).intern();
michael@0:     }
michael@0: 
michael@0:     public static String newStringFromBuffer(@NoLength char[] buf, int offset, int length) {
michael@0:         return new String(buf, offset, length);
michael@0:     }
michael@0: 
michael@0:     public static String newEmptyString() {
michael@0:         return "";
michael@0:     }
michael@0: 
michael@0:     public static String newStringFromLiteral(@Literal String literal) {
michael@0:         return literal;
michael@0:     }
michael@0:     
michael@0:     public static String newStringFromString(String string) {
michael@0:         return string;
michael@0:     }
michael@0:     
michael@0:     // XXX get rid of this
michael@0:     public static char[] newCharArrayFromLocal(@Local String local) {
michael@0:         return local.toCharArray();
michael@0:     }
michael@0: 
michael@0:     public static char[] newCharArrayFromString(String string) {
michael@0:         return string.toCharArray();
michael@0:     }
michael@0:     
michael@0:     public static @Local String newLocalFromLocal(@Local String local, Interner interner) {
michael@0:         return local;
michael@0:     }
michael@0:     
michael@0:     // Deallocation methods
michael@0:     
michael@0:     public static void releaseString(String str) {
michael@0:         // No-op in Java
michael@0:     }
michael@0:     
michael@0:     // Comparison methods
michael@0:     
michael@0:     public static boolean localEqualsBuffer(@Local String local, @NoLength char[] buf, int offset, int length) {
michael@0:         if (local.length() != length) {
michael@0:             return false;
michael@0:         }
michael@0:         for (int i = 0; i < length; i++) {
michael@0:             if (local.charAt(i) != buf[offset + i]) {
michael@0:                 return false;
michael@0:             }
michael@0:         }
michael@0:         return true;
michael@0:     }
michael@0: 
michael@0:     public static boolean lowerCaseLiteralIsPrefixOfIgnoreAsciiCaseString(@Literal String lowerCaseLiteral,
michael@0:             String string) {
michael@0:         if (string == null) {
michael@0:             return false;
michael@0:         }
michael@0:         if (lowerCaseLiteral.length() > string.length()) {
michael@0:             return false;
michael@0:         }
michael@0:         for (int i = 0; i < lowerCaseLiteral.length(); i++) {
michael@0:             char c0 = lowerCaseLiteral.charAt(i);
michael@0:             char c1 = string.charAt(i);
michael@0:             if (c1 >= 'A' && c1 <= 'Z') {
michael@0:                 c1 += 0x20;
michael@0:             }
michael@0:             if (c0 != c1) {
michael@0:                 return false;
michael@0:             }
michael@0:         }
michael@0:         return true;
michael@0:     }
michael@0:     
michael@0:     public static boolean lowerCaseLiteralEqualsIgnoreAsciiCaseString(@Literal String lowerCaseLiteral,
michael@0:             String string) {
michael@0:         if (string == null) {
michael@0:             return false;
michael@0:         }
michael@0:         if (lowerCaseLiteral.length() != string.length()) {
michael@0:             return false;
michael@0:         }
michael@0:         for (int i = 0; i < lowerCaseLiteral.length(); i++) {
michael@0:             char c0 = lowerCaseLiteral.charAt(i);
michael@0:             char c1 = string.charAt(i);
michael@0:             if (c1 >= 'A' && c1 <= 'Z') {
michael@0:                 c1 += 0x20;
michael@0:             }
michael@0:             if (c0 != c1) {
michael@0:                 return false;
michael@0:             }
michael@0:         }
michael@0:         return true;
michael@0:     }
michael@0:     
michael@0:     public static boolean literalEqualsString(@Literal String literal, String string) {
michael@0:         return literal.equals(string);
michael@0:     }
michael@0: 
michael@0:     public static boolean stringEqualsString(String one, String other) {
michael@0:         return one.equals(other);
michael@0:     }
michael@0:     
michael@0:     public static void delete(Object o) {
michael@0:         
michael@0:     }
michael@0: 
michael@0:     public static void deleteArray(Object o) {
michael@0:         
michael@0:     }
michael@0: }